English Grammar In the college be aware of your "Argus eyes" friends. What the meaning is of argues eyes?

व्याख्या:- Argus-eyed - Extremely observant; vigilant and carefully observant or attentive; on the lookout for possible danger; a policy of open-eyed awareness; the vigilant eye of the town watch; there was a watchful dignity in the room; a watchful parent with a toddler in tow open-eyed, vigilant, wakeful. Jaunty means having or expressing a lively, cheerful, and self-confident manner. So, C is correct answer.